6 AM PST to IST Converter

The Twin Alarm Clocks

Slide the Pacific alarm; the India bell rings to its matching wall-clock time. The current date sets whether Pacific is on PST (+13:30) or PDT (+12:30).

Common Pacific Call Times

One tap loads the Pacific hour; the India bell updates instantly.

PST → IST Conversion Table

Need the reverse direction? Try the IST to US time converters.

The Conversion Formula

Time Zone Reference

No saved conversions yet. Tap "Save to History" to remember up to six Pacific-to-India times.

How to Use the Twin Alarm Converter

1. Drag the Pacific alarm slider to the hour you want — it defaults to 6:00 AM, the classic west-coast standup time.
2. Pick the date. The tool applies US daylight saving automatically: PST (+13:30) in winter, PDT (+12:30) from the second Sunday of March to the first Sunday of November.
3. Read the India bell. The IST alarm clock rings at the matching wall time and the card spells it out (for 6 AM PST that is 7:30 PM IST).
4. Watch for the "next calendar day" flag — late-evening Pacific times cross midnight into the following day in India.
5. Save the conversion to history so a recurring call time is one tap away tomorrow morning.

Why 6 AM Pacific Lands at 7:30 PM in India

In 2026, a product manager in San Francisco who runs a 6:00 AM Pacific stand-up with an engineering pod in Bengaluru needs one number she can trust: what does 6 AM on her clock read on theirs? The answer is 7:30 PM India Standard Time during the winter months, when California sits on Pacific Standard Time, and 6:30 PM IST during the summer, when California springs forward to Pacific Daylight Time. This tool fixes that single most-fumbled conversion — the morning Pacific call to India — with a DST-aware twin alarm clock so nobody books a meeting at the wrong hour.

Pacific Time is the time zone of the United States west coast, anchored to the cities of Los Angeles, San Francisco, Seattle, and Portland, plus the Canadian province of British Columbia and the Mexican state of Baja California. In winter it observes Pacific Standard Time (PST), which is UTC minus 8 hours. From the second Sunday of March to the first Sunday of November it observes Pacific Daylight Time (PDT), which is UTC minus 7 hours, under the Uniform Time Act of 1966 as amended by the Energy Policy Act of 2005.

India Standard Time (IST) is the single time zone covering all of India, from Gujarat in the west to Arunachal Pradesh in the east. It is UTC plus 5 hours and 30 minutes, referenced to the longitude of 82.5 degrees east passing near Mirzapur in Uttar Pradesh. India does not observe daylight saving time, so the IST clock never moves. That makes IST the fixed anchor in any Pacific-to-India conversion: only the Pacific side shifts twice a year, which is exactly why the offset jumps between 13.5 and 12.5 hours.

The arithmetic is therefore clean. During PST, IST runs 13 hours and 30 minutes ahead of Pacific, so 6:00 AM PST is 7:30 PM IST the same calendar day. During PDT, IST runs 12 hours and 30 minutes ahead, so 6:00 AM PDT is 6:30 PM IST. The half-hour is the giveaway: IST is one of only a handful of zones offset by 30 minutes from the hour, a legacy of the 1905 decision to place the whole subcontinent on a single meridian rather than split it into Bombay Time and Calcutta Time as the British railways had done.

Why the half-hour offset survived is itself a story. Madras Time, established by the East India Company astronomer John Goldingham in 1802 at the Madras Observatory, ran 5 hours 21 minutes ahead of Greenwich. When the Indian Standard Time meridian was formally adopted on the first of January 1906 it rounded that to the convenient 5:30, splitting the difference between Bombay and Calcutta local times. The result is the IST that every Pacific caller still has to add 13.5 hours to reach in winter.

Daylight saving is the trap that catches most schedulers. Because the United States changes clocks but India does not, the Pacific-to-India offset is not constant — it is 13.5 hours for the roughly four winter months and 12.5 hours for the eight summer months. A recurring 6:00 AM Pacific call therefore lands at 7:30 PM IST in January and 6:30 PM IST in July, a full hour of drift that has wrecked more than one cross-continental product launch. This converter reads the date you choose and applies the correct offset automatically.

For teams that live across this gap, the practical playbook is to anchor the meeting to the fixed side. India does not move, so picking an IST time and back-converting to Pacific is more stable than the reverse. A 7:30 PM IST sync sits at 6:00 AM Pacific in winter and 7:00 AM Pacific in summer — a one-hour Pacific drift the California team can absorb more easily than the India team can absorb a late-night shift. Pair this tool with the sibling PST-to-IST and IST-to-PST converters to map both directions of any recurring call.